I have recently changed the battery in our ADT alarm and I turned the mains off. when I switched it back on, the keypad displays black squares all the way across. I can not enter the code set it or do anything to the alarm. It has a constant green led light which I believe means everything is okay- fuse battery etc. does anyone know what this is an how i can fix it.
Or a loose connection on the A & B lines, it does happen.
acorn
September 2012
did you power up battery first then mains? Try this process again when power is applied see if the keypad says configuring before displaying alarm in progress. If this does not happen and you have not disconnected any wires it sounds like the panel is knackered I'd suggest getting someone (Not ADT but someone reputable) in and dont be suprised if they say you've gotta have a new panel
TomTv
September 2012
A line of *********s on the RKP
= No Communication on A B Line,
possibly faulty PCB or lack of resistor.
You need an engineer to check it out
PS, they are not squares, they are stars.
acorn
September 2012
what it means is you need the engineering code to re-set but you dont have it,sorry girl dont mean to sound smart just stating the truth
gts
September 2012
if green light means all ok,why you on this site mate ?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home alarm systems.